Search for dissertations about: "polymerization."

Showing result 1 - 5 of 342 swedish dissertations containing the word polymerization..

  2. 1. Graft polymerization

    Author : Torbjörn Lindberg; KTH; []
    Keywords : ;

    Abstract : This thesis is focused on morphological aspects of polymericsubstrates used in graft polymerization. Morphological changesof selected polymer systems were investigated in the virginstate and after irradiation, during the progress of graftpolymerization, in the final grafted state and duringsubsequent degradation. READ MORE

  4. 2. Understanding the mechanisms behind atom transfer radical polymerization : exploring the limit of control

    Author : Helena Bergenudd; Mats Jonsson; Eva Malmström Jonsson; David M Haddleton; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; polymerization; controlled radical polymerization; atom transfer radical polymerization; kinetics; catalysis; electrochemistry; Polymer chemistry; Polymerkemi;

    Abstract : Atom transfer radical polymerization (ATRP) is one of the most commonly employed techniques for controlled radical polymerization. ATRP has great potential for the development of new materials due to the ability to control molecular weight and polymer architecture. READ MORE

  5. 3. Biochemical Control Aspects in Lignin Polymerization

    Author : Anders Holmgren; Gunnar Henriksson; Liming Zhang; Jussi Sipilä; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Lignin polymerization; DHP; Ascorbic Acid; NADH; template polymerization; melanin; Chemistry; Kemi;

    Abstract : Lignins are produced by all vascular plants and they represent one of the most abundant groups of biopolymers in nature. Lignin chemistry research, which has been of great importance for the progress of pulping technologies, has been plagued by the difficulties of its isolation and characterization. READ MORE

  6. 4. Controlled Ring-Opening Polymerization : Mechanism and Synthesis of Macromolecular Architectures with Tailored Properties

    Author : Maria Ryner; KTH; []
    Keywords : controlled ring-opening polymerization; poly L-lactide ; poly 1; 5-dioxepan-2one ; stannous octoate; tin alkoxide; DFT methods; mechanism; triblock; multiblock; tailored hydrophilicity; elastomers; resorbable materials;

    Abstract : .... READ MORE

  7. 5. Lipase-Catalyzed Syntheses of Telechelic Polyesters

    Author : Magnus Eriksson; Karl Hult; Mats Martinelle; Sergio Riva; KTH; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Candida antarctica lipase B; lipase-catalysis; polymerization; telechelic; functional polyesters; ring-opening polymerization; polycondensation.; Biochemistry; Biokemi;

    Abstract : Telechelic polyesters have successfully been synthesized with lipase-catalyzed polymerization. The produced telechelics had a high degree of di­functionalization, high purity (requiring little or no workup) and controlled degree of polymerization. The syntheses were performed in one-pot one-step reaction systems. READ MORE